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Tips from Our Readers| Volume 126, ISSUE 1, P131-132, July 2021

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A technique to facilitate the prosthetic rehabilitation of oropharyngeal defects by combining an intraoral scanner with a conventional impression

Published:August 03, 2020DOI:https://doi.org/10.1016/j.prosdent.2020.05.008
A technique to facilitate the prosthetic rehabilitation of oropharyngeal defects by combining an intraoral scanner with a conventional impression
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      Digital techniques for fabricating obturators have been described.
      • Sun F.
      • Shen X.
      • Zhou N.
      • Gao Y.
      • Guo Y.
      • Yang X.
      • et al.
      A speech bulb prosthesis for a soft palate defect with a polyetherketoneketone (PEKK) framework fabricated by multiple digital techniques: a clinical report.
      J Prosthet Dent. 2020; 124: 495-499
      , 
      • Tasopoulos T.
      • Chatziemmanouil D.
      • Karaiskou G.
      • Kouveliotis G.
      • Wang J.
      • Zoidis P.
      Fabrication of a 3D-printed interim obturator prosthesis: a contemporary approach.
      J Prosthet Dent. 2019; 121: 960-963
      , 
      • Palin C.L.
      • Huryn J.M.
      • Golden M.
      • Booth P.R.
      • Randazzo J.D.
      Three-dimensional printed definitive cast for a silicone obturator prosthesis: a clinical report.
      J Prosthet Dent. 2019; 121: 353-357
      However, digital technology is difficult to integrate into their fabrication because of imperfections in the printed casts.
      • Londono J.
      • Abreu A.
      • Baker P.S.
      • Furness A.R.
      Fabrication of a definitive obturator from a 3D cast with a chairside digital scanner for a patient with severe gag reflex: a clinical report.
      J Prosthet Dent. 2015; 114: 735-738
      In addition, the required equipment or even software-editing expertise may not be available for dentists worldwide. Londono et al
      • Londono J.
      • Abreu A.
      • Baker P.S.
      • Furness A.R.
      Fabrication of a definitive obturator from a 3D cast with a chairside digital scanner for a patient with severe gag reflex: a clinical report.
      J Prosthet Dent. 2015; 114: 735-738
      recently published a step-by-step technique for fabricating obturator prostheses by using a chairside digital scanner and conventional impressions. However, the demarcation described between the printed cast and the bulb portion, from a conventional impression used to generate a definitive cast, raises some concerns about the complexity of the technique, specifically, whether definitive casts can be combined easily.
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      References

        • Sun F.
        • Shen X.
        • Zhou N.
        • Gao Y.
        • Guo Y.
        • Yang X.
        • et al.
        A speech bulb prosthesis for a soft palate defect with a polyetherketoneketone (PEKK) framework fabricated by multiple digital techniques: a clinical report.
        J Prosthet Dent. 2020; 124: 495-499
        View in Article
        • Tasopoulos T.
        • Chatziemmanouil D.
        • Karaiskou G.
        • Kouveliotis G.
        • Wang J.
        • Zoidis P.
        Fabrication of a 3D-printed interim obturator prosthesis: a contemporary approach.
        J Prosthet Dent. 2019; 121: 960-963
        View in Article
        • Palin C.L.
        • Huryn J.M.
        • Golden M.
        • Booth P.R.
        • Randazzo J.D.
        Three-dimensional printed definitive cast for a silicone obturator prosthesis: a clinical report.
        J Prosthet Dent. 2019; 121: 353-357
        View in Article
        • Londono J.
        • Abreu A.
        • Baker P.S.
        • Furness A.R.
        Fabrication of a definitive obturator from a 3D cast with a chairside digital scanner for a patient with severe gag reflex: a clinical report.
        J Prosthet Dent. 2015; 114: 735-738
        View in Article
        • Resende C.C.D.
        • Barbosa T.A.Q.
        • Moura G.F.
        • Tavares L.D.N.
        • Rizzante F.A.P.
        • George F.M.
        • et al.
        Influence of operator experience, scanner type, and scan size on 3D scans.
        J Prosthet Dent. 2021; 125: 294-299
        View in Article

      Article info

      Publication history

      Published online: August 03, 2020

      Identification

      DOI: https://doi.org/10.1016/j.prosdent.2020.05.008

      Copyright

      © 2020 by the Editorial Council for The Journal of Prosthetic Dentistry.

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